Antisludge tool



Feb. 11, 1947.

.c.- E. GARNER ,553.

ANTISLUDGE TOOL Filed Sept. 14, 1942 L 0 Master 5 fame/ Patented Feb. M, 1947 I FATE ANTISLUDGE TOOL ChesterE. Garner, Chicago, m. Application September 14, 1942, Serial No. 458,299

2 Claims. 1

This invention relates to anti-sludge tools and has as its principal object the provision of an anti-sludge device which will be simple in construction and operation, economical in manufacture and highly efficient in use.

Another object of this invention isto provide a device for insertion into the interior of an engine housing for the purpose of directing air pressure to a cleaning fluid to spray the latter into remote corners of the housing to dislodge sludge I and foreign matter.

Other objects and novel aspects of this invention consist in the novel combination and arrangement of parts to be hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawing showing the preferred form of construction and in which:

Fig. 1 is a fragmentary perspective view, partly in section, of an internal combustion engine having the anti-sludge tool embodied in this invention associated therewith;

Fig. 2 is an enlarged'elevational view of my new anti-sludge tool shown partly in section;

Fig. 3 is a fragmentary perspective view showing a different form of crank case from that shown in Fig. 1 and with my new anti-sludge tool modified valve assembly for the valve stem.

Referring to the drawing, Fig. 1 illustrates a conventional motor block having the usual crank case II with an open bottom normally closed by a drop pan l2 which is suitably fastened to flanges E3 on the block In by means of stud bolts I l. Exposed interiorly of this crank case II are the various drive means of the motor, such for instance, as the cam shaft l5 which operates the push rods I6 of valve members I! and the crank shaft it which is held by main bearings within the crank case and which is driven .by pistons [9 through connecting rods 20 which are connected .to a, wrist pin IS on the piston and are suitably journaled by bearings M to crank arms 22. The foregoing engine structure is merely illustrative of a common form of motor with which my new anti-sludge tool may be'used. I therefore do not intend to limit the use of such tool to the specific motor construction shown but desire to avail myself of all adaptations to which my new tool may be put.

As is commonly known, motor means of the type shown is disposed to contain a certain volume of lubricating oil 23 which assumes a level'.

within the crank case whereby the crank arms 22 dip into the oil 23 while other well known means (not shown) are used to force oil upward into contact with other moving parts such as the wrist pins 19' and the cam shaft i5. After constant use of the motor such oil becomes polluted with carbon, condensation and particles of grit and loses its lubricating qualities and must be removed and replaced.

The main purpose of the present invention is to provide a simple means for flushing out the oil chamber of the motor and for permeating the interior of such oil chamber with a solvent whereby sludge and dirt collections will be loosened from the interior walls of the chambe as well as moving parts arranged therein. To this end I provide an anti-sludge tool generally indicated at 24 which comprises a valve stem 25 having a flanged end portion 26 to which is soldered a length of bendable tubing 21 forming a'nozzle to be hereinafter explained. This tubing 21- is aligned with the Valve stem 25 to form a continuous conduit and is'bent inan arch 28 adjacent to its connection with .the stem 25 to dispose a portion of the tube 29 at substantially right angle with respect to the stem 25. The tube 21 is then bent back in an opposite direction as at 30 to dispose the remainder of the tubing 21 at an oblique angle with respect to the stem 25. The extreme end of the tubing 21 is swage sealed as at 3| by flattening the end of the tube and by soldering or otherwise blocking on the space between abutting ends of the tubing wall. The valve stem 25 is provided with a screw thread 32 adjacent the flange 26 and terminates into a protruding neck 33 within which is threaded a. spring-urged valve plunger 34 of awell known the stem 25 but prevents eiiiux of air or fluid from the stem 25 to a point exterior-1y thereof. A suitable cap 35 is threaded over the open end of the stem 25 to prevent dama n the valve plunger when the tool 24' is being moved about.

The crank case of a motor such as the one shown is provided with a. drain plug (not shown) which is normally threaded into an opening 36 formed in a low point of the drop pan l2. Such opening 36 may be formed in various locations dependent upon the design of the motor. For purpose of illustration, a side drain is shown in the form of motor illustrated in Fig. 1 wherein there is provided an inclined trough 31 pitched from the low point of the pan I2 toward the opening 36; a diiierent form of side drain is illustrated in Fig. 3 wherein the side wall 38 of the pan i2 extends straight down to meet the curved bottom 39 of the trough 31', the opening 36a being pitched slightly upwards with respect to the horizontal; while still another form of drain is shown in Fig. 4 by the provision of a descending opening 36' formed in the bottom of the pan i241. Means for adapting the anti-sludge tool to each particular opening comprises an adapter coupling 40 which is identical in size and'structure to the normal drain plug taken from the motor with the exception that this adapter coupling has a central passage 4i drilled therethrough which is of suflicient clearance to pass over the screw thread 32 adjacent the flange 26.

In the process of using the anti-sludge tool 2d,

(reference being had to Fig. 1) the drain plug isremoved from the crank case opening 36 after the motor has been run up to its normal operating temperature. If the motor is provided with an oil filter 42' the same is removed and a cover 42 placed over the mounting 43 for the oil filter. The tubing 21 is then inserted into the opening 36 while a washer 4G is placed over the screw thread 32 to form a seal for the end of the adapter coupling fill, the passage ii of which is now slid over the valve stem 25 and the coupling to threaded into the opening 36. A nut 45 is then threaded over the screw thread 32 to affix the valve stem 25 securely on the coupling 60. The anti-sludge tool 26 is now in position for operation.

' A suitable solvent is then poured into the crank case I3 through the conventional filling entrance (not shown), such solvent one solution comprising equal parts of flushing oil and a distillate. The engine may then be operated in the usual manner on its own running power to slush the solvent solution in and about the crank case onto the various parts therein contained. It is to be noted that the tubing 21 will be disposed substantially out of range of the movable crank arm 22 or connecting rod bearing 2| associated therewith by reason of the peculiar bent formed in the tubing 2?.

After a reasonable flushing time by operation of the motor, the latter is shut off and the cap 35 removed from the valve stem 25. And air pressure hose 46 is then attached to the end of r the valve stem 25 and air under pressure of approximately 100 pounds per square inch applied through the valve 34 for about two minutes. The tubing 2l'forms a nozzle and has a plurality of ports 41 formed in staggered relation along its outer face (see Fig. 2) with a final port 48 formed adjacent the swaged end 3|. These ports "-48 are p eferably, though not necessarily, exposed to the lower wall of the chamber being cleaned, as shown in Fig. 4. The compressed air passing into the valve stem 25 is conveyed up through the tubing 21 escaping through ports 41 and 48.

' thus swirling the solvent oil in the crank case and agitating the oil to cause flotation of all particles and sediment contained in the drop pan i2. The air pressure is then shut off and the nut 45 unscrewed as is the adapter coupling 40, to permit the solvent to drain through opening 36 while the sludge and sediment is still in a state of tation in the solvent.

In Figs. 5 to 8 inclusive there is shown a modified form of valve for the valve stem 25. This valve is hand controlled to provide a pet cock generally indicated at Eli. With this pet cock 50 in the valve stem, the air valve 35 is optional and may be eliminated entirely so that the pet cock is the only means of controlling passage through thevalve stem 25,

'As shown, this pet cook 50 comprises a barrel 5| which is mounted in an annular passage 52 formed in. the stem 25 at right angles to the normal throat passage. The two ends of the barrel 5| are flanged as at 53 to tightly fix the barrel 5! in the passage 52. The outer edge of each flange portion is provided with a round head 54 and in one of these heads is formed a key slot 55 into which a wrench Samay be inserted to facilitate rotation of the barrel 5!. A by-pass opening 5'! is cut through the barrel 5| at right angle to the long axis of the latter, which opening is'disposed to align with the throat passage in the stem 25 as shown in Fig. '7 orv upon turning of the barrel 5| to traverse the throat passage whereby the body of the barrel 5| will block the throat passage in the valve stem 25.

With this form of valve the attendant opens the pet cock when the air is started flowing from the hose 46, and after the agitation of the solvent is completed and the air hose removed, the pet cock controls the drainage flow from the crank case.

While I have illustrated and described the preferred form of construction for carrying the invention into effect, this is capable of variation and modification without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth. but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to protect by Letters Patent is:

1. In an anti-sludge tool for agitating a solvent within the crank case of an engine through the drain opening thereof, the combination of a valve stem, a check valve in said valve stem, means for securing said valve stem in said drain opening to seal the latter, and a nozzle extending from said valve stem for disposal within said crank case, said nozzle being bent at substantially a right angle adjacent said valve stem and being bent back upon itself to dispose the remaining portion of said nozzle substantially parallel to an adjoining wall of said crank case, and a plurality of ports formed in said nozzle and exposed to a solvent'and to produce a flotation of the sediment within the crank case in said solvent.

2. In an anti-sludge tool for agitating a solvent within the crank case of an engine through the drain opening thereof, the combination of a valve stem, a check valve in said valve stem, means for securing said ,valve stem in said drain opening to seal the latter, and a nozzle extending from said valve stem for disposal within said crank case, said nozzle being bent at substantially a right angle adjacent saidlvalve stem and being bent 5 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS" Number Name Date 1,584,505 Bevins May 11, 1926 1,509,327 Winchester Sept. 23, 1924 10 2,076,262 Black -Apr. 6, 1937 2,102,795 Gray Dec..21, 1937 

